A Ponzi scheme is a form of fraud that lures investors and pays profits to earlier investors with funds from more recent investors. The scheme leads victims to believe that profits are coming from product sales or other means, and they remain unaware that other investors are the source of funds.
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https://en.wikipedia.org/wiki/Ponzi_schemeThanks again. I ask why do you think there is no way to exploint their scheme. I have not ask how the scheme work (that is elementary school knowledge). I am probably the worst asker on the world.